1927392449 has 2 divisors, whose sum is σ = 1927392450. Its totient is φ = 1927392448.

The previous prime is 1927392443. The next prime is 1927392499. The reversal of 1927392449 is 9442937291.

It is an a-pointer prime, because the next prime (1927392499) can be obtained adding 1927392449 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638630400 + 288762049 = 40480^2 + 16993^2 .

It is a cyclic number.

It is not a de Polignac number, because 1927392449 - 2⁸ = 1927392193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1927392397 and 1927392406.

It is not a weakly prime, because it can be changed into another prime (1927392443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 963696224 + 963696225.

It is an arithmetic number, because the mean of its divisors is an integer number (963696225).

Almost surely, 2^1927392449 is an apocalyptic number.

It is an amenable number.

1927392449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1927392449 is an equidigital number, since it uses as much as digits as its factorization.

1927392449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 1927392449 is about 43902.0779576548. The cubic root of 1927392449 is about 1244.4861024299.

The spelling of 1927392449 in words is "one billion, nine hundred twenty-seven million, three hundred ninety-two thousand, four hundred forty-nine".